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Providing evidence to improve practice

Individual study: Artificial nests for Canada geese Branta canadensis reduce predation rates on nests in a wetland in Missouri, USA

Published source details

Brakhage G.K. (1966) Tub nests for Canada geese. The Journal of Wildlife Management, 30, 851-853

This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.

Use artificial nests that discourage predation Bird Conservation

A replicated study on a wetland site in Missouri, USA (Brakhage 1966), found that 2% of 268 Canada goose Branta canadensis clutches in artificial nest ‘tubs’ were predated in 1962-5, compared 32% of 106 clutches laid on the ground. Artificial nests consisted of ‘No. 2 round washtubs’ placed in trees, on fence posts or specially constructed stands and partially filled with sawdust and straw to allow geese to bury unattended eggs. Tubs were placed 1-20 m off the ground (height did not affect predation rate). Some nests were still considered useable after nine years.